of Long Term Research Conducted by the Northeastern Research Station
Plant Composition and Production
following Fire and Clear-Cutting for Salvage in Budworm-Defoliated
||To determine the effect of prescribed fire and clear-cutting
for salvage on tree regeneration, plant composition, production
and quality in spruce-fir and mixed-wood stands defoliated by
||Moosehorn National Wildlife Refuge, Washington County and
Private Land in Bucksport located in Hancock County. Both sites
in Maine. 45deg, 10min N. lat. by 67deg,10min long. and 44deg,
50min N. lat. by 68deg, 50min long.
||Split-split plot with factorial; 3 major plots on each of
2 soil classes, subplots include burned, unburned, cut, uncut
(salvaged). A separate ANOVA table was used to evaluate defoliated
and undefoliated conditions.
|Likelihood of Locating Study Areas:
||The following types of stand treatments were applied to areas
by deep and shallow soils:
Defoliated, Salvaged, Burned Stands,
Defoliated, Salvaged, Unburned Stands,
Defoliated, Unsalvaged, Unburned Stands, and
Undefoliated, Unsalvaged, Unburned Stands.
||Plant production was sampled using weight estimation, clipping
and microwave attenuation. Plant selection by ungulates was
determined using trackable animals. Forage digestibility was
determined by in-vitro analyses. Tree regeneration was measured
on randomly located quadrants. Fire, reaction intensity and
unit-area energy release was estimated by measuring flame length
and rate of spread and heat sensitive paint.
|Variables and Sampling Frequency:
1. Number of regenerating trees by species, diameter at root
collar and height class.
2. Plant production by species, parts and groups.
3. Vegetation data (July-August 1980-1984).
4. Vegetation selection by deer and moose (year round 1980-1981).
5. Forage quality by species, parts, and groups. according to:
a. Defoliated, salvaged, burned stands.
b. Defoliated, salvaged, unburned stands.
c. Defoliated, unsalvaged, unburned stands.
d. Undefoliated, unsalvaged, unburned stands.
e. Soil type.
||Double-sampling techniques and error-checking computer programs
were applied. Observers were trained and checked throughout
||Raw and partially analyzed on computer tape, PC with ~2 megabytes,
paper, and diskettes.
|Global Change Research Applications:
||Studies of Ecosystem Processes.
|Publications and Reports:
||Crawford, H.S.; Lautenschlager, R.A.; Stokes, M.R.; Stone,
T.L. 1993. Effects of forest disturbance and soil depth on digestible
energy for moose and white-tailed deer. Res. Paper NE-682. Radnor,
PA: U.S. Department of Agriculture, Forest Service, Northeastern
Forest Experiment Station.
||Tim Stone, USDA Forest Service, Penobscot
Experimental Forest, 686 Government Road, Bradley, ME 04411.